research summary

research theme

Animation of Waterdrops with Particle-Based Liquid Simulation

summary

There is higher and higher demand for realistic computer-generated animation of natural phenomena based on the physical computation. Especially for interactive applications, e.g. video games, computation of physical phenomena needs to be completed in real-time frame rate. Waterdrops, which we can find out around us in various scenes, are not able to be depicted realistically by simulation in real time because of its specific physical feature and high computational cost. This paper proposes extended Smoothed Particle Hydrodynamics which simulate liquid motion with particles, and the method of depicting waterdrops through interfacial tension model. Interfacial tension model gives particles the force dependent on the distance from contact line as interfacial tension. The proposed method enables to simlulate waterdrops with different contact angle and with flat shape. Besides, smoothing density volume enables to render smoother water surface. The proposed method was implemented and suceeded to generate figure of waterdrops with different contact angles and reflected capillary length feature with particles.

k=0.0 k=0.5 k=1.0
k=0.0 k=0.5 k=1.0
upper: particle view / lower:rendered image．strength of interfacial tension k=0.0, 0.5, 1.0.